PMID: 9553618Apr 29, 1998Paper

Age- and menopause-related changes in speed of sound and ultrasound attenuation of the os calcis in a healthy Italian female population

Aging : Clinical and Experimental Research
C TirafiliG F Mazzuoli

Abstract

This study assessed changes in ultrasonometric variables of bone (speed of sound, broadband ultrasound attenuation and stiffness) related to age and years since menopause in a normal Italian female population. Two hundred and thirty-one healthy female subjects, age range 18-78 years, divided into two groups (113 pre-menopausal, age range 18-51 years, and 118 post-menopausal, age range 46-78 years), were investigated. The results obtained show that there was a linear decrease in speed of sound, broadband ultrasound attenuation and stiffness with age; a similar pattern was also observed in post-menopausal women as far as the correlations between ultrasonometric variables and both age and years since menopause were concerned. In particular, speed of sound declined at a rate of 0.86 m/s for each year post-menopause, while broadband ultrasound attenuation declined at 0.4 dB/MHz, and stiffness at 0.5 units. These findings suggest that ultrasound variables might be able to detect characteristics of bone that are barely influenced by estrogen deficiency, and depend on other factors. Therefore, ultrasound measurement should be considered as a possible alternative to x-ray densitometry for the assessment of the skeleton.

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Citations

Nov 25, 2000·Journal of Bone and Mineral Research : the Official Journal of the American Society for Bone and Mineral Research·M S PatelL A Rubin

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